Comparison of PTH series sensors

We offer a growing variety of USB temperature and relative humidity sensors. Learn about the options and find the perfect one for your application.

Product table

Product Operating range T° Accuracy
(at 25°C, typical)
%RH Accuracy
(at 25°C, typical)
Sensor enclosure Cable type Barometric Pressure
(at 25°C, typical)
PTH450 -40°C to 125°C ±0.1°C ±1.5 %RH Aluminium Silicon 70 to 110 ±0.15 kPa
PTH420 -40°C to 70°C ±0.1°C ±1.5 %RH PET mesh PVC Idem
PTH200 -40°C to 70°C ±0.3°C ±2.0 %RH PET mesh PVC Idem

Note: The above is a summary meant to highlight key differences. Please refer to individual product pages and datasheets for complete specifications.

Particle filter

Some models include a thin PTFE membrane that blocks more than 99.99% of particles over 200nm. This is recommended for harsh environments where extra protection against dust, soot and other contaminants is required.

Enclosure types

The enclosure covers the digital sensor probe.

Picture Enclosure type Pros Cons
Aluminium Excellent physical protection, extended temperature Slower response time, higher cost
PET Mesh Good protection, low cost Slightly slower response time

Cable type

Most models use standard PVC cables, but high-temperature range models use Silicon cables.

  • PVC: Low-cost standard cable type, medium temperature range. Not suitable for extreme temperatures. It can crack if flexed at low temperatures.
  • Silicon: High-temperature resistance, stays flexible even at low temperatures.

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